<template>
  <div class="login-container login_bg ver hor-center">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form corner20"
             style="background-color: #283443; box-shadow: 0 0 10px #4f6476;"
             auto-complete="on" label-position="left">

      <div class="title-container hor hor-center ver-center">
        <!--        <img src="../../assets/logo512.png" height="40" width="40"/>-->
        <h3 class="title mg-lr-20">安装类招采数据分析平台</h3>
      </div>

      <el-form-item prop="username">
        <span class="svg-container">
          <svg-icon icon-class="user"/>
        </span>
        <el-input
          ref="username"
          v-model="loginForm.username"
          placeholder="Username"
          name="username"
          type="text"
          tabindex="1"
          auto-complete="on"
        />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password"/>
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="Password"
          name="password"
          tabindex="2"
          auto-complete="on"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"/>
        </span>
      </el-form-item>

      <el-button :loading="loading" type="primary" style="width:100%;margin-bottom:30px;"
                 @click.native.prevent="handleLogin">Login
      </el-button>

    </el-form>
  </div>
</template>
<style>
  .login_bg {
    margin: 0;
    width: 100%;
    height: 100vh;
    font-family: "Exo", sans-serif;
    color: #fff;
    background: linear-gradient(-45deg, #0D1A2C, #283443, #2F2C47, #120E2E);
    background-size: 400% 400%;
    animation: gradientBG 10s ease infinite;
  }

  @keyframes gradientBG {
    0% {
      background-position: 0% 50%;
    }
    50% {
      background-position: 100% 100%;
    }
    100% {
      background-position: 0% 50%;
    }
  }

</style>
<script>
  import {validUsername} from '@/utils/validate'

  const routerConstant = require('@/router/index')
  export default {
    name: 'Login',
    data() {
      const validateUsername = (rule, value, callback) => {
        if (!validUsername(value)) {
          callback(new Error('请输入正确的用户名'))
        } else {
          callback()
        }
      }
      const validatePassword = (rule, value, callback) => {
        if (value.length < 6) {
          callback(new Error('请至少输入6位密码'))
        } else {
          callback()
        }
      }
      return {
        loginForm: {
          username: '',
          password: ''
        },
        loginRules: {
          username: [{required: true, trigger: 'blur', validator: validateUsername}],
          password: [{required: true, trigger: 'blur', validator: validatePassword}]
        },
        loading: false,
        passwordType: 'password',
        redirect: undefined
      }
    },
    watch: {
      $route: {
        handler: function (route) {
          this.redirect = route.query && route.query.redirect
        },
        immediate: true
      }
    },
    methods: {
      showPwd() {
        if (this.passwordType === 'password') {
          this.passwordType = ''
        } else {
          this.passwordType = 'password'
        }
        this.$nextTick(() => {
          this.$refs.password.focus()
        })
      },
      handleLogin() {
        this.$refs.loginForm.validate(valid => {
          if (valid) {
            const _this = this
            this.loading = true
            this.$store.dispatch('user/login', this.loginForm).then(() => {

              //以下为自己保存的菜单数据
              const routeList = []
              let list = JSON.parse(JSON.stringify(routerConstant.asyncRouterMap))
              list = routerConstant.filterRouter(list)
              //以下为添加路由表中的配置项（知会添加配置项目的是更新左侧栏，并不会生成真正的路由）
              for (let i = 0; i < routerConstant.constantRoutes.length; i++) {//添加静态权限
                routeList.push(routerConstant.constantRoutes[i])
              }

              // console.log('过滤前菜单')
              // console.log(JSON.stringify(routeList))
              list = routerConstant.filterRouterData(list)

              for (let i = 0; i < list.length; i++) {//添加动态权限
                routeList.push(list[i])
              }

              // console.log('存储菜单列表')
              // console.log(JSON.stringify(routeList))
              _this.setItem('leftMenu' + process.env.VUE_APP_BASE_API, routeList)

              this.$router.push({path: this.redirect || '/'})
              // this.$router.push({ path: '/system/user'})
              this.loading = false
            }).catch((e) => {
              this.loading = false
              console.log(e)
              this.$message({
                message: e + '',
                type: 'warning',
                duration: 1000
              })
            })

          } else {
            console.log('error submit!!')
            return false
          }
        })
      }
    }
  }
</script>

<style lang="scss">
  /* 修复input 背景不协调 和光标变色 */
  /* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

  $bg: #283443;
  $light_gray: #fff;
  $cursor: #fff;

  @supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
    .login-container .el-input input {
      color: $cursor;
    }
  }

  /* reset element-ui css */
  .login-container {
    .el-input {
      display: inline-block;
      height: 47px;
      width: 85%;

      input {
        background: transparent;
        border: 0px;
        -webkit-appearance: none;
        border-radius: 0px;
        padding: 12px 5px 12px 15px;
        color: $light_gray;
        height: 47px;
        caret-color: $cursor;

        &:-webkit-autofill {
          box-shadow: 0 0 0px 1000px $bg inset !important;
          -webkit-text-fill-color: $cursor !important;
        }
      }
    }

    .el-form-item {
      border: 1px solid rgba(255, 255, 255, 0.1);
      background: rgba(0, 0, 0, 0.1);
      border-radius: 5px;
      color: #454545;
    }
  }
</style>

<style lang="scss" scoped>
  $bg: #2d3a4b;
  $dark_gray: #889aa4;
  $light_gray: #eee;

  .login-container {
    min-height: 100%;
    width: 100%;
    background-color: $bg;
    overflow: hidden;

    .login-form {
      position: relative;
      width: 520px;
      max-width: 100%;
      padding: 0px 35px 0;
      margin: 0 auto;
      overflow: hidden;
    }

    .svg-container {
      padding: 6px 5px 6px 15px;
      color: $dark_gray;
      vertical-align: middle;
      width: 30px;
      display: inline-block;
    }

    .title-container {
      position: relative;

      .title {
        font-size: 26px;
        color: $light_gray;
        text-align: center;
        font-weight: bold;
      }
    }

    .show-pwd {
      position: absolute;
      right: 10px;
      top: 7px;
      font-size: 16px;
      color: $dark_gray;
      cursor: pointer;
      user-select: none;
    }
  }
</style>
